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Added the correct halftone palette.

This commit is contained in:
Aric Stewart 2002-01-29 02:53:43 +00:00 committed by Alexandre Julliard
parent 42a314dea6
commit ae7fe2db12
1 changed files with 78 additions and 20 deletions
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98
objects/palette.c
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@ -150,12 +150,15 @@ HPALETTE16 WINAPI CreateHalftonePalette16(
* Success: Handle to logical halftone palette
* Failure: 0
*
* FIXME: not truly tested
* FIXME: This simply creates the halftone palette dirived from runing
* tests on an windows NT machine. this is assuming a color depth
* of greater that 256 color. On a 256 color device the halftone
* palette will be differnt and this funtion will be incorrect
*/
HPALETTE WINAPI CreateHalftonePalette(
HDC hdc) /* [in] Handle to device context */
{
int i, r, g, b;
int i;
struct {
WORD Version;
WORD NumberOfEntries;
@ -166,24 +169,71 @@ HPALETTE WINAPI CreateHalftonePalette(
Palette.NumberOfEntries = 256;
GetSystemPaletteEntries(hdc, 0, 256, Palette.aEntries);
for (r = 0; r < 6; r++) {
for (g = 0; g < 6; g++) {
for (b = 0; b < 6; b++) {
i = r + g*6 + b*36 + 10;
Palette.aEntries[i].peRed = r * 51;
Palette.aEntries[i].peGreen = g * 51;
Palette.aEntries[i].peBlue = b * 51;
}
}
}
for (i = 216; i < 246; i++) {
int v = (i - 216) * 8;
Palette.aEntries[i].peRed = v;
Palette.aEntries[i].peGreen = v;
Palette.aEntries[i].peBlue = v;
}
Palette.NumberOfEntries = 20;
for (i = 0; i < Palette.NumberOfEntries; i++)
{
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xff;
Palette.aEntries[i].peBlue=0xff;
Palette.aEntries[i].peFlags=0x00;
}
Palette.aEntries[0].peRed=0x00;
Palette.aEntries[0].peBlue=0x00;
Palette.aEntries[0].peGreen=0x00;
/* the first 6 */
for (i=1; i <= 6; i++)
{
Palette.aEntries[i].peRed=(i%2)?0x80:0;
Palette.aEntries[i].peGreen=(i==2)?0x80:(i==3)?0x80:(i==6)?0x80:0;
Palette.aEntries[i].peBlue=(i>3)?0x80:0;
}
for (i=7; i <= 12; i++)
{
switch(i)
{
case 7:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peBlue=0xc0;
Palette.aEntries[i].peGreen=0xc0;
break;
case 8:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peGreen=0xdc;
Palette.aEntries[i].peBlue=0xc0;
break;
case 9:
Palette.aEntries[i].peRed=0xa6;
Palette.aEntries[i].peGreen=0xca;
Palette.aEntries[i].peBlue=0xf0;
break;
case 10:
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xfb;
Palette.aEntries[i].peBlue=0xf0;
break;
case 11:
Palette.aEntries[i].peRed=0xa0;
Palette.aEntries[i].peGreen=0xa0;
Palette.aEntries[i].peBlue=0xa4;
break;
case 12:
Palette.aEntries[i].peRed=0x80;
Palette.aEntries[i].peGreen=0x80;
Palette.aEntries[i].peBlue=0x80;
}
}
for (i=13; i <= 18; i++)
{
Palette.aEntries[i].peRed=(i%2)?0xff:0;
Palette.aEntries[i].peGreen=(i==14)?0xff:(i==15)?0xff:(i==18)?0xff:0;
Palette.aEntries[i].peBlue=(i>15)?0xff:0x00;
}
return CreatePalette((LOGPALETTE *)&Palette);
}
@ -218,6 +268,14 @@ UINT WINAPI GetPaletteEntries(
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (!palPtr) return 0;
/* NOTE: not documented but test show this to be the case */
if (count == 0)
{
int rc = palPtr->logpalette.palNumEntries;
GDI_ReleaseObj( hpalette );
return rc;
}
numEntries = palPtr->logpalette.palNumEntries;
if (start+count > numEntries) count = numEntries - start;